package cn.edu.pku.mapper;

import cn.edu.pku.entity.CountInfo;

import java.util.List;
import java.util.Map;

public interface CountInfoMapper {
    int selectBookInfoCount();

    int selectBookNoteCount();

    List<CountInfo> selectCountInfo();

    List<Map<String,Object>> selectBookCount();

    List<Map<String,Object>> selectBorrowInfoCount();

    List<Map<String,Object>> selectBorrowerCount();
}